open your EYES to MORE labelling SOLUTIONS - Avery Dennison ...

The most obvious requirements are
for good layfl at and low adhesive
bleed. We believe that with our
careful choice of raw materials (i.e.
facestocks, liner, and adhesives) allied
to our manufacturing capabilities,
we can provide materials which
give trouble-free conversion to the
converter and problem-free printing
for the end user.
However, there are certain
recommendations we would like to
pass on to ensure that this is indeed
the case.
Layfl at. There are three main aspects
to layfl at: moisture curl, hang, and
core memory.
If moisture curl is seen on an A4
sheet, it appears as curl in the cross
direction (assuming the paper has
been converted long grain). This is
minimised during our process by
ensuring that the moisture content
of the paper face and liner are in
equilibrium with each other. Our
internal QA checks ensure that
moisture curl on Fasson products is
minimized.
6. General recommendations for product handling
Especially for A4 product conversion, the proper
handling of products is one of the most critical issues in
pressure sensitive labelling.
To avoid moisture curl, we strongly
recommend that material is kept in its
original wrappings until it is needed
for conversion and stored within
the range 40 - 60 % RH, and at a
temperature between 18 - 23°C. This
is particularly relevant when handling/
converting fi lmic facestocks.
“Hang” appears on an A4 sheet
as curl in the machine direction
(again, assuming the paper has
been converted long grain). This
is minimised again in our process
by ensuring that both the face and
liner are laminated together at the
same rate, and that there has been
no tension introduced into the
laminate as a result. Our internal QA
checks ensure that “hang” on Fasson
products is minimized.
It is possible, particularly with coated
and more rigid products, that a certain
degree of “core memory” is evident
near the core. This can be reduced
using de-curl bars, or using thick
walled cores.
Adhesive Bleed. Adhesive bleed/
edge ooze can have a negative effect
on printer performance, especially
laser and copier printers, due to the
temperatures involved during the
printing process. Commonly it causes
printer jams, or contamination of the
printer drum. The range of Fasson
adhesives has been specifi cally
designed to have low edge ooze,
and work well with most common A4
conversion methods. That said, we
would still recommend edge stripping,
or at the very least edge slitting during
conversion. If net width conversion
is preferred, we would strongly
recommend running a test trial fi rst.